Communications - communications with other applications using geci  
CreateLink - creates a link between two applications  
DestroyLink - destroys the link between two applications  
ExecAppli - executes an application  
ExecScilab - executes another local scilab  
ExeclScilab - executes another linked local scilab  
GetMsg - gets a pending message  
SendMsg - sends a message  
WaitMsg - waits for a message  
